fix: detect correct DRM driver on wayland

[AmmoniumX]

Closes #330

After upgrading to linux kernel 6.11 and nvidia drivers 560, vaapi wouldn't use the right DRM drivers when on wayland. This PR fixes it by forcing it to search for the right DRM driver when on wayland, much like it was previously set to force it on x11.

As a disclaimer, I will admit that I'm not 100% sure if this is a "necessary" fix, or if it's just a band-aid patch to a misconfigured system on my side (Further testing is needed). However, it does fix my issue, and vainfo launches successfully on wayland. If it ends up that there's a better way to address the issue, feel free to close this PR.

[MartiUK]

I can confirm this works.

[NyanMaths]

This works nicely for vainfo but other applications use DRM display by default anyway and die when trying to initialize vaapi. I set bool isDrm = false at the beginning of VAStatus __vaDriverInit_1_0(VADriverContextP ctx) function and it just works in other applications like freetube or firefox.
The stutters when changing workspaces playing videos in firefox is even gone after months ! lol nope
I don't know how to identify a nyavidia GPU in here but libva should default the display to wayland instead of DRM for this change to be more effective.